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11001220210 = 251957901159
BaseRepresentation
bin10100011111011100…
…10100110001110010
31001101200201220001101
422033232110301302
5140012303021320
65015350155014
7536422554211
oct121756246162
931350656041
1011001220210
1147359a1632
122170352a6a
131064263b76
1476510b078
15445c30c0a
hex28fb94c72

11001220210 has 16 divisors (see below), whose sum is σ = 20844417600. Its totient is φ = 4168883376.

The previous prime is 11001220159. The next prime is 11001220247. The reversal of 11001220210 is 1202210011.

It is a super-2 number, since 2×110012202102 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28950390 + ... + 28950769.

It is an arithmetic number, because the mean of its divisors is an integer number (1302776100).

Almost surely, 211001220210 is an apocalyptic number.

11001220210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11001220210 is a deficient number, since it is larger than the sum of its proper divisors (9843197390).

11001220210 is a wasteful number, since it uses less digits than its factorization.

11001220210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57901185.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11001220210 its reverse (1202210011), we get a palindrome (12203430221).

The spelling of 11001220210 in words is "eleven billion, one million, two hundred twenty thousand, two hundred ten".

Divisors: 1 2 5 10 19 38 95 190 57901159 115802318 289505795 579011590 1100122021 2200244042 5500610105 11001220210